JP2004234780A - 磁気記録再生装置及び磁気ヘッド - Google Patents

磁気記録再生装置及び磁気ヘッド Download PDF

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Publication number
JP2004234780A
JP2004234780A JP2003023875A JP2003023875A JP2004234780A JP 2004234780 A JP2004234780 A JP 2004234780A JP 2003023875 A JP2003023875 A JP 2003023875A JP 2003023875 A JP2003023875 A JP 2003023875A JP 2004234780 A JP2004234780 A JP 2004234780A
Authority
JP
Japan
Prior art keywords
magnetic
recording
film
hard
soft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2003023875A
Other languages
English (en)
Japanese (ja)
Inventor
Akihiko Takeo
昭彦 竹尾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP2003023875A priority Critical patent/JP2004234780A/ja
Priority to SG200400295A priority patent/SG119210A1/en
Priority to US10/769,477 priority patent/US20040228031A1/en
Priority to CN200410003782.0A priority patent/CN1567434A/zh
Publication of JP2004234780A publication Critical patent/JP2004234780A/ja
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0005—Arrangements, methods or circuits
    • G11B2005/001—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0005—Arrangements, methods or circuits
    • G11B2005/001—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure
    • G11B2005/0013—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0005—Arrangements, methods or circuits
    • G11B2005/001—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure
    • G11B2005/0013—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation
    • G11B2005/0016—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation of magnetoresistive transducers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0026—Pulse recording
    • G11B2005/0029—Pulse recording using magnetisation components of the recording layer disposed mainly perpendicularly to the record carrier surface
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/245—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/313—Disposition of layers
    • G11B5/3143—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding
    • G11B5/3146—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding magnetic layers
    • G11B5/3153—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding magnetic layers including at least one magnetic thin film coupled by interfacing to the basic magnetic thin film structure
    • G11B5/3156—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding magnetic layers including at least one magnetic thin film coupled by interfacing to the basic magnetic thin film structure providing interaction by induced or exchange coupling
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
    • G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/465—Arrangements for demagnetisation of heads

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
  • Magnetic Record Carriers (AREA)
JP2003023875A 2003-01-31 2003-01-31 磁気記録再生装置及び磁気ヘッド Pending JP2004234780A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2003023875A JP2004234780A (ja) 2003-01-31 2003-01-31 磁気記録再生装置及び磁気ヘッド
SG200400295A SG119210A1 (en) 2003-01-31 2004-01-20 Disk drive and magnetic head for perpendicular magnetic recording
US10/769,477 US20040228031A1 (en) 2003-01-31 2004-01-29 Disk drive and magnetic head for perpendicular magnetic recording
CN200410003782.0A CN1567434A (zh) 2003-01-31 2004-01-30 用于垂直磁记录的磁盘驱动器和磁头

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003023875A JP2004234780A (ja) 2003-01-31 2003-01-31 磁気記録再生装置及び磁気ヘッド

Publications (1)

Publication Number Publication Date
JP2004234780A true JP2004234780A (ja) 2004-08-19

Family

ID=32952563

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003023875A Pending JP2004234780A (ja) 2003-01-31 2003-01-31 磁気記録再生装置及び磁気ヘッド

Country Status (4)

Country Link
US (1) US20040228031A1 (zh)
JP (1) JP2004234780A (zh)
CN (1) CN1567434A (zh)
SG (1) SG119210A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7359146B2 (en) 2003-07-16 2008-04-15 Tdk Corporation Perpendicular magnetic recording element having stacked FM and AFM films applying magnetic bias along easy axis of soft magnetic film

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007035082A (ja) * 2005-07-22 2007-02-08 Hitachi Global Storage Technologies Netherlands Bv 垂直記録用磁気ヘッド及びその製造方法
US7672080B1 (en) * 2006-09-15 2010-03-02 Western Digital (Fremont), Llc Laminated perpendicular writer head including amorphous metal
US8514519B2 (en) * 2009-10-21 2013-08-20 HGST Netherlands B.V. Device for generating high frequency magnetic fields in a rest-frame of a magnetic medium

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5132859A (en) * 1990-08-23 1992-07-21 International Business Machines Corporation Thin film structures for magnetic recording heads
US5712751A (en) * 1994-03-17 1998-01-27 Kabushiki Kaisha Toshiba Magnetic sensor and magnetic recording-reproducing head and magnetic recording-reproducing apparatus using same
US5841611A (en) * 1994-05-02 1998-11-24 Matsushita Electric Industrial Co., Ltd. Magnetoresistance effect device and magnetoresistance effect type head, memory device, and amplifying device using the same
FR2738374B1 (fr) * 1995-08-30 1997-11-14 Villard Gerard Profile pour dispositif d'affichage et dispositif d'affichage realise avec ledit profile
US5909345A (en) * 1996-02-22 1999-06-01 Matsushita Electric Industrial Co., Ltd. Magnetoresistive device and magnetoresistive head
SG47214A1 (en) * 1996-03-14 1998-03-20 Sony Corp Thin-film magnetic head
JP2000348307A (ja) * 1999-06-03 2000-12-15 Tdk Corp 磁気抵抗効果素子、薄膜磁気ヘッドおよびそれらの製造方法
US6721131B2 (en) * 2001-03-15 2004-04-13 Seagate Technology Llc Composite write pole for a magnetic recording head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7359146B2 (en) 2003-07-16 2008-04-15 Tdk Corporation Perpendicular magnetic recording element having stacked FM and AFM films applying magnetic bias along easy axis of soft magnetic film

Also Published As

Publication number Publication date
SG119210A1 (en) 2006-02-28
CN1567434A (zh) 2005-01-19
US20040228031A1 (en) 2004-11-18

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